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Question1. What is the oxygen requirement of organisms that are able to reduce nitrates?
Question2.Is nitrate reduction an aerobic or anaerobic process? Circle one.
Question3.What purpose does the nitrate serve to bacteria that can reduce it?
Question4.After incubation, two reagents will be added to the culture to determine if nitrate is still present. Name these reagents.
Question5.If a red color is produced after addition of these reagents, is the test positive or negative?
Question6.If the test is negative, does this mean that the organism did not reduce nitrates? What are the possibilities?
Question7. If there is no color change after the addition of the reagents noted in #4, zinc is added to the culture. What purpose does thezinc powder serve?
Question8. What color is a positive test after addition of zinc?
The endosymbiosis theory discusses that mitochondria and chloroplasts were originally prokaryotic cells that were engulfed by ancestors of current day eukaryotic cells.
Suppose that an animal that has a system similar to ABO blood types in humans. The ABO part is the same. In addition, they have a second independent gene that makes a mimic A protein
In a study of intraspecific aggression, an experimenter finds that sixteen out of 23 animals tested in species A exhibit aggression,
Every cell in the human body has two alleles that condense into single chromosomes held together through a centromere. These sister chromaatids replicate and pair with newly made homologous chromosomes.
If a transferrin receptor has a cross-sectional area of 50 Angstroms X 100 angstroms (5x10nm), and how many receptors could be accomodated in a 100nm clathrin-coated vesicle assume that only 50% of surface area can be occupied by proteins.
Social media strategy implementation and evaluation
The value of neutrons and protons a molecule have determine a molecules "Molecular Weight". An important part of working a laboratory involves making molar solutions.
Explain a muscle contraction beginning with the motor neuron to relaxation of the muscle. Discuss the physiological relationship of the muscular and skeletal system.
Action potentials are usually generated at axon hillock and propagated down axon away from the cell body. If you experimentally depolarized an axon to the threshold level at a point halfway down the axon, what would happen.
How is sex determined in grasshoppers? Can you find out other examples of organisms with a similar system of sex determination.What syndrome is defined by an XXX genotype.
There are several examples of the eukaryotic cells. Algae, Fungi, Plants, and Animals are all composed of eukaryotic cells. Some algae and fungi are unicellular organisms.
Compare and difference wave summation with recruitme nt. How are they similar? Describe how wave summation and recruitment are achieved in the body.
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